• Proposed
  • Under Assessment
  • Preliminary Assessed
  • DDAssessed
  • Published

Geomorium furciae Kraisit., Pfister & M.E. Sm.

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Scientific name
Geomorium furciae
Kraisit., Pfister & M.E. Sm.
Common names
IUCN Specialist Group
Cup-fungi, Truffles and Allies
Incertae sedis
Assessment status
Proposed by
Camille Truong
Francisco Kuhar, Camila Monroy Guzmán, Donald Pfister, Camille Truong
Matthew Smith
Comments etc.
Anders Dahlberg, James Westrip
David Minter

Assessment Notes


This species is only known from Melimoyu Natural Reserve, in a region that has not received much survey effort. Therefore, it is not possible to accurately estimate the population size and so an accurate Red List category is not possible (although it could potentially qualify as Critically Endangered). Therefore, it is listed as Data Deficient.

Taxonomic notes

Why suggested for a Global Red List Assessment?

This ectomycorrhizal species is strictly associated with Nothofagus and is only known from a single collection in the Aysen region of Chile.

Geographic range

This species occurs in Nothofagus forest in the Aysen region of Chile (the type collection at Melimoyu Natural Reserve).

Population and Trends

Geomorium furciae is only known from one locality in a Nothofagus dombeyi forest in the Aysen region of Chile (Melimoyu Natural Reserve). This is an easily recognizable species but can be easily overlooked, so it could be very rare or it could be being missed in searches. There have been few mycological studies in this area compared to other regions of Patagonia, thus other populations may exist.

Population Trend: Uncertain

Habitat and Ecology

This ectomycorrhizal species associates exclusively with Nothofagus species in Patagonia. So far it has only been found in an old growth Nothofagus dombeyi forest in the Aysén region of Chile (Melimoyu Natural Reserve).

Subantarctic Forest


It is found on privately owned land, and protection is not guaranteed into the future. This species is associated with an increasingly threatened habitat-type. Deforestation and forest fires (intentional and accidental due to drought and climate change) are a growing threat to this habitat, but in the area of the type locality there are few threats that may impact the site.

Unintentional effects: subsistence/small scale (species being assessed is not the target) [harvest]Increase in fire frequency/intensityHabitat shifting & alterationDroughts

Conservation Actions

The only known locality of Geomorium furciae lies within a protected area (Melimoyu Natural Reserve), but protection is not guaranteed into the future as it is a privately owned site. Protection of old growth forest in this region could be of a benefit to this species.

Site/area protectionResource & habitat protection

Research needed

Little is known about the biology of the species (fruiting patterns) as well as its ecology (habitat requirement, host specificity) and its interaction with its Nothofagus host. Further research is needed in the area to find out whether more populations exist.

Population size, distribution & trendsLife history & ecology

Use and Trade

No use or trade is known so far.


Kraisitudomsook, N., Healy, R. A., Pfister, D. H., Truong, C. and Nouhra, E. (2020). Resurrecting the genus Geomorium : Systematic study of fungi in the genera Underwoodia and Gymnohydnotrya ( Pezizales ) with the description of three new South American species. Persoonia 44, 98–112.

Known distribution - countries

Regional Population and Trends

Country Trend Redlisted